Hybrid Tea rose plant named ‘Ruirorap’

ABSTRACT

A new and distinct Hybrid Tea Rose plant having attractive large Red flowers.

Botanical desgnation: Rosa L.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct variety of Rosa L.of the Hybrid Tea rose class, which was created by crossing as seedparent an unnamed, undistributed seedling and as a pollen parent theunpatented variety known as ‘Tina’. The varietal denomination of thisnew rose is named ‘Rutrorap.’ The new variety was grown from a graftedcutting in The Netherlands.

SUMMARY OF THE INVENTION

Among the novel characteristics possessed by this new variety whichdistinguishes it from its parents and all other varieties of which I amaware are its bud shape and color.

Asexual reproduction by propagation of grafting of the new variety asperformed in De Kwakel, The Netherlands shows that the foregoing andother distinguishing characteristics come true to form and areestablished and transmitted through succeeding propagation.

COMPARISON WITH PARENTS

Among other respects, the new variety differs from its parents in flowercolor, inasmuch as the seed parent has Pink flowers and the pollenparent has small Yellow flowers whereas the new variety has large Redflowers.

BRIEF DESCRIPTION OF ILLUSTRATION(S)

The accompanying illustration shows a typical specimen of 9-month oldplants grown in a greenhouse in The Netherlands in the month of Novemberof the new variety depicted in color as nearly true as is reasonablypossible to make the same in a color illustration of this character.

DESCRIPTION OF THE NEW VARIETY

The following is a detailed description of the new variety with colorterminology in accordance with The Royal Horticultural Society ColourChart (R.H.S.C.C.). The terminology used in color description hereinrefers to plate numbers in the aforementioned color chart. Phenotypicexpression may vary with light availability, environmental and culturalconditions.

The following observations are made of 9-month old plants grown in agreenhouse in De Kwakel, The Netherlands during September from a graftedcutting.

FLOWER

Blooming habit: Continuous.

Bud.—Large length about 5 cm, width about 3.5 cm. Form: Cylindrical.Color: When sepals first divide, Red darker than 46A.

Sepals.—At top some leafy protrusion, 2 sepals also have some leafyprotrusion on the margins, surface looks lovely. Size: Length about 4cm, width at the base about 1 cm. Color: Upper Surface: Near 144A. Undersurface: Near 144A and between 177A and 177B.

Peduncle.—Length: About 10 cm. Aspect: At the first 2 cm of the pedunclefrom the bottom are some small prickles about 1 mm in length; thesurface of the upper part of the peduncle is smooth. Strength: Diameterabout 4 mm. Color: Green Group, near 144A.

Bracts.—None observed.

Bloom:

Size.—Average size when fully opened — about 12 cm.

Borne.—Singly.

Form.—Upper part of flower is flat (shape-side view), Lower part isconvex (shape-side view).

Petalage: Number of petals under normal conditions — about 22.

Color ({fraction (1/3)} to {fraction (1/2)} open).—Outer Petals: Topsurface — Red Group, darker than 46A, under surface — Red Group near46A. Inner Petals: Top surface — Red Group darker than 46A, undersurface — Red near 46A. General tonality from a distance: Red. Base ofPetals (point of attachment): Very small White, near 155A.

Color (fully opened):

Outer petals.—Top surface — Red Group darker than 46A, under surface —Red Group near 46A.

Inner petals.—Top surface — Red Group darker than 46A, under surface —Red Group near 46A.

General tonality from a distance.—Red.

Base of petals (point of attachment).—Very small White near 155A.

Color change.—Color does not change as bloom ages.

General tonality from a distance.—Red.

Texture: Thick — wrinkled.

Appearance: Inside velvety; outside satiny.

Form: Nearly round, width about 6 cm, height about 6 cm.

Arrangement: Irregularly arranged.

Petaloids in center: About 5.

Persistence: Petals are persistent.

Fragrance: None.

Lasting quality:

On the plant.—About 20 days.

In the vase.—About 13 days, flower opens very slowly.

REPRODUCTIVE ORGANS

Stamens, filaments and anthers:

Arrangement.—Regularly arranged around styles.

Color.—Stamens Red Group near 53B, Filaments Red Group near 53B, AnthersGreyed-Yellow Group near 161B.

Pollen.—Color Greyed-White Group, near 156D.

Styles.—Bunched, uneven length.

Stigmas.—Color Grey-Yellow Group, near 161D.

Hips.—Shape: Pitcher shaped. Size: At full bloom, length about 1 cm attop, width about 1 cm at top. Color: The color of the hips, at fullbloom, is near 144A.

PLANT

Form: Upright, long.

Growth: Uniform branching, very vigorous at moderate temperatures;height attained (first season) about 180 cm.

Foliage: Compound, 3, 5 to 7 leaflets.

Size.—Length about 15 cm, width about 11 cm.

Quantity.—About 11 leaves per stem, about 200 stems per m² per year.

Color.—New foliage: Upper side Purple Group near 187A; Under sideReddish Green Group, near 183A and 138B. Mature foliage: Upper sideGreen Group near 139A; Under side Green Group near 137C.

Shape.—Elliptic.

Texture.—Upper side: Smooth with deep-lying veins. Under side: Smoothwith high-lying veins.

Edge.—Serrated.

Serration.—Serrate.

Petiole: Top surface Purple Group near 187A; Under surface near 138.

Stipules: Length about 2 cm, margin serrated, color middle: Light Greenbetween 138B to 138D; margin, Dark Green near 139A.

Auricle: Absent.

Rachis: 1 to 3 prickles.

Resistance to disease: Susceptible to Blackspot, resistant to Mildew andRust.

WOOD

New shoots:

Bark.—Smooth, Reddish Green Group near 177A and 146B.

Wood.—Light Green Group Near 146B.

Old wood:

Bark.—Smooth, Green Group near 1346.

Wood.—White Grey Group near 155C.

Flower stem: Between 70 to 100 cm from last cut (including peduncle).

Thorns:

Quantity.—Many small thorns (about 30 per stem) on basal canes at thebasis, about 25 thorns per stem on laterals from basal canes.

Form.—Strong, curved downwardly, length about 1 cm, width about 0.5 cm,color (when young) Green near 146C, position irregular.

Prickles.—Some prickles at the basis of basal canes.

Winter hardiness: Not tested — glasshouse variety.

Uniqueness: Very good grow at moderate temperatures under glasshouseconditions, good bud shape and color.

I claim:
 1. A new and distinct Hybrid Tea Rose plant of the varietysubstantially as shown and described.